Home / 142,922.04-197,244.24-79,280.40

Finding the Fourth Proportional to 142,922.04, 197,244.24 and 79,280.40

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Solution

The fourth proportional to 142,922.04, 197,244.24 and 79,280.40 is: 109,413.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,922.04 : 197,244.24 = 79,280.40 : x
  2. Step 2: Convert to fraction form
    142,922.04/197,244.24 = 79,280.40/x
  3. Step 3: Cross multiply
    142,922.04x = 197,244.24 × 79,280.40
  4. Step 4: Simplify right side
    142,922.04x = 15,637,602,244.90
  5. Step 5: Solve for x
    x = 15,637,602,244.90/142,922.04
  6. Step 6: Final answer
    x = 109,413.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.